Mechanism of dedoping processes of conducting poly(3-alkylthiophenes)

被引：36

作者：

Koizumi, H ^{[1
]}

Dougauchi, H ^{[1
]}

Ichikawa, T ^{[1
]}

机构：

[1] Hokkaido Univ, Grad Sch Engn, Div Mat Chem, Kita Ku, Sapporo, Hokkaido 0608628, Japan

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 32期

关键词：

D O I：

10.1021/jp051989k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

To clarify the mechanism of thermal dedoping processes of conducting poly(3-alkylthiophenes), temporal changes in electric conductivity, photoabsorption, and electron spin resonance of iodine-doped poly(3-octylthiophene) were examined. A decrease in the electric conductivity was accompanied by a decrease in the photoabsorption of the polymer cation and an increase in the spin concentration: the cation is a spinless charge carrier and it was converted to an immobile paramagnetic species. The conversion proceeds through deprotonation of the cation, which results in the formation of a polyenyl radical.

引用

页码：15288 / 15290

页数：3

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